Kerry Katona's fiancé was hospitalised under the UK's Mental Health Act on Wednesday evening.
George Kay was reportedly sectioned at John Radcliffe Hospital in Oxford for his own welfare after a female motorist called the police when she spotted the former rugby league player "running in and out of cars" in an agitated manner, screaming that someone was trying to kill him.
A spokesman for Thames Valley Police told The Sun newspaper: "Thames Valley Police can confirm that officers were called to a road in Chinnor shortly after 6pm following concerns for the welfare of a man.
"A 34-year-old man was detained at the scene and taken to the John Radcliffe Hospital in Oxford, where he was detained under the Mental Health Act. He was later discharged."